package chapter_21_observer.classic;

/**
 * @author yaochenglong
 * @date 2017/10/23
 */
public class ConcreteSubject1 extends Subject {

    public void doSomething1(){
        //业务逻辑...
        /**
         * do something...
         */

        //通知观察者
        super.notifyObserver();
    }
}
